3-((1R,4R,8S,E)-1-hydroxy-4,8-dimethyl-9-(triisopropylsilyloxy)non-2-enyl)-5,6-dimethoxy-5,6-dimethyl-1,4-dioxan-2-one                                                                                                                                                              在
                                                                                                                                                                                 (+/-)-camphorsulfonic acid                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                以74%的产率得到(2R,3R,6R,10S,E)-methyl-2,3,11-trihydroxy-6,10-dimethylundec-4-enoate